Fuel cap



FIG. 1 is a front perspective view for a fuel cap;

FIG. 2 is a top plan view for a fuel cap as shown in FIG. 1;

FIG. 3 is a front elevation view for a fuel cap as shown in FIG. 1;

FIG. 4 is a right side elevation view for a fuel cap as shown in FIG. 1; and,

FIG. 5 is a bottom plan view for a fuel cap as shown in FIG. 1. 

The ornamental design for a fuel cap, as shown and described. 